2104423065 has 64 divisors (see below), whose sum is σ = 4029972480. Its totient is φ = 1038882240.

The previous prime is 2104423043. The next prime is 2104423091. The reversal of 2104423065 is 5603244012.

2104423065 is a `hidden beast` number, since 210 + 442 + 3 + 0 + 6 + 5 = 666.

It is not a de Polignac number, because 2104423065 - 2⁷ = 2104422937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 85324 + ... + 107186.

It is an arithmetic number, because the mean of its divisors is an integer number (62968320).

Almost surely, 2^2104423065 is an apocalyptic number.

It is an amenable number.

2104423065 is a deficient number, since it is larger than the sum of its proper divisors (1925549415).

2104423065 is a wasteful number, since it uses less digits than its factorization.

2104423065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21931 (or 21925 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2104423065 is about 45873.9911605694. The cubic root of 2104423065 is about 1281.4775956106.

Adding to 2104423065 its reverse (5603244012), we get a palindrome (7707667077).

The spelling of 2104423065 in words is "two billion, one hundred four million, four hundred twenty-three thousand, sixty-five".